For making boberry biscuits, which of the following is a critical ingredient?

The critical ingredient for making boberry biscuits is frozen berries. Boberry biscuits are a specific type of biscuit that includes blueberries, contributing to their distinctive flavor and texture. The use of frozen berries allows for the incorporation of these essential ingredients into the biscuit dough, providing the sweet and fruity taste that characterizes boberry biscuits.

While butter, dough enhancer, and dry pellets can be important in the biscuit-making process, they do not define the specific flavor profile and identity of boberry biscuits as much as frozen berries do. The berries not only add sweetness but also moisture and a burst of flavor that is essential to the recipe. Without frozen berries, the outcome would not result in true boberry biscuits, making them vital for this specific preparation.